EP3303453A1 - Organopolysiloxanes-polyuréthanes - Google Patents

Organopolysiloxanes-polyuréthanes

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Publication number
EP3303453A1
EP3303453A1 EP16727150.1A EP16727150A EP3303453A1 EP 3303453 A1 EP3303453 A1 EP 3303453A1 EP 16727150 A EP16727150 A EP 16727150A EP 3303453 A1 EP3303453 A1 EP 3303453A1
Authority
EP
European Patent Office
Prior art keywords
alkyl
compound
polysiloxane
optionally
iii
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16727150.1A
Other languages
German (de)
English (en)
Other versions
EP3303453B1 (fr
Inventor
Volker DEHM
Gunther Duschek
Rainer Hayessen
Dirk Sielemann
Martin TEICHERT
Maximilian SCHUBERT
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Rudolf GmbH
Original Assignee
Rudolf GmbH
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Publication of EP3303453A1 publication Critical patent/EP3303453A1/fr
Application granted granted Critical
Publication of EP3303453B1 publication Critical patent/EP3303453B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/38—Polysiloxanes modified by chemical after-treatment
    • C08G77/382—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon
    • C08G77/388—Polysiloxanes modified by chemical after-treatment containing atoms other than carbon, hydrogen, oxygen or silicon containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/647—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing polyether sequences
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/653—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain modified by isocyanate compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/50—Modified hand or grip properties; Softening compositions

Definitions

  • the invention relates to polyurethane organopolysiloxanes and their applications, in particular for the finishing of textile fabrics and textile fibers.
  • Amine-containing polysiloxanes have long been used as textile finishing agents. In the treated textiles good soft-grip effects are achieved.
  • the polysiloxanes are applied to the textile as a liquid preparation, for example in the form of aqueous emulsions. In this case, the amino groups are protonated by adding an acid in the formulation for improved emulsifiability of the polysiloxane.
  • a problem of the formulations containing amino-functional polysiloxanes is the sensitivity of the application liquors prepared from them to variations in pH.
  • precipitates of the polysiloxane or phase separation are observed in these systems at higher pH values, for example at a pH> 7.
  • a homogeneous application of the softener agent is no longer guaranteed under these conditions.
  • many treatment steps are carried out in a strongly alkaline medium. If the washing processes are not thoroughly carried out, residual amounts of alkalis may remain on the substrate and be introduced into the treatment baths during the subsequent finishing steps.
  • the pH Value of the equipment fleet rising to> 9 in the shortest possible time. So it may come to the mentioned strong precipitations.
  • WO 2004/044306 and WO 03/095735 describe polysiloxanes containing quaternary ammonium groups.
  • the quaternary ammonium groups are always present as cationic groups both in the acidic and in the basic pH range. Emulsions produced from this have good stability and rarely cause stains during use.
  • Another disadvantage of many amino- or ammonium-containing polysiloxanes is their sensitivity to anionic substances.
  • anionic surfactants are often used.
  • Many post-treatment agents for improving the fastness of dyeings are also based on anionic polymers. If such substances are not thoroughly washed out, they can interfere with the application of the softening agent in the finishing process by blocking the cationic ammonium groups via salt formation. This leads to a destabilization of the emulsion in the application fleet and often also to the formation of silicone stains.
  • the polysiloxanes are prepared from an epoxy-functional organopolysiloxane reacted with amines and alkyl alcohol alkoxylates. This is followed by quaternization with an alkylating agent.
  • the organopolysiloxanes are used to finish textile substrates and are characterized by good soft-grip effects and high resistance to yellowing. Due to the terminal polyether and ammonium groups, these systems have good pH stability.
  • the preparations described therein are suitable for use in combination with water repellents, without the oil and water repellent negative influence.
  • WO 2005/121218 describes a process for the preparation of siloxane copolymers in which modified organopolysiloxanes having terminal hydroxy groups are reacted with di- or polyisocyanates.
  • the compounds are used for soft-grip modification of fibrous substrates and are characterized by good hydrophilicity.
  • polyurethane organopolysiloxanes with pendant polyether groups preparable by the reaction of hydroxy-modified organopolysiloxanes with di- or polyisocyanates, produce excellent softening effects on textiles.
  • the polyurethane organopolysiloxanes of the invention can be emulsified in an aqueous medium without or with only small amounts of additional surfactants. The otherwise associated with surfactants negative effects on foaming and dye migration can be minimized.
  • the formulations based on such polyurethane organopolysiloxanes have very good pH and anion stability in use and a very good stability against shear stress.
  • the present invention relates to a polysiloxane obtainable by a process comprising the steps:
  • a 1 is independently a divalent linear or
  • x is an integer of 1 to 1000, preferably 1 to 500, and
  • reaction product (I) contains at least one polyether radical introduced by compound (III);
  • R 1 and x are as defined above, R 2 are independently divalent branched or linear
  • a 2 is independently selected from the group consisting of -O-,
  • a 3 is independently selected from the group consisting of -O-,
  • R ' is a monovalent hydrocarbon radical having 1 to 18
  • n is independently an integer of 0-150, preferably 0-70, more preferably 0-30;
  • step (iv) reacting the reaction product (I) or the equilibrated reaction product (I) from step (iii) and optionally the compound (IV) or the equilibrated compound (IV) from step (iii) with at least one organic compound (V) which has at least two isocyanate groups per molecule.
  • reaction product (I) is obtained by reaction of the compound (II)
  • R 1 is independently a hydrocarbon radical having 1-18 carbon atoms per radical.
  • the hydrocarbon radical is independently Ci-i 8 alkyl, aryl, such as phenyl, naphthyl, anthryl or phenanthryl, alkaryl, such as Toluene, or aralkyl, such as benzyl.
  • Alkyl or alkyl defined by the number of carbon atoms, for example C 1-8 -alkyl, in the present invention means a linear, branched or cyclic saturated hydrocarbon radical.
  • a C 1-8 alkyl radical includes, for example, a methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, , Neopentyl, tert-pentyl, n-hexyl, isohexyl, n-heptyl, isoheptyl, n-octyl, isooctyl, n-nonyl, isononyl, n-decyl, isodecyl, n-dodecyl, Isododecyl-, n-octadecyl-3-
  • R 1 is selected from the group consisting of Ci -6 alkyl, aryl or aralkyl, more preferably C ⁇ alkyl, aryl or benzyl, even more preferably Ci -6 alkyl, more preferably methyl or ethyl, and most preferably methyl.
  • the hydrocarbon may be further substituted.
  • Suitable substituents are preferably halogen, such as fluorine, chlorine, bromine and iodine and hydroxy.
  • a 1 is independently a divalent linear or branched group having up to 8 carbon atoms and optionally having up to 4 heteroatoms, such as oxygen, sulfur or nitrogen.
  • a 1 is preferably a divalent linear or branched group having up to 8 carbon atoms and optionally having one heteroatom, especially oxygen.
  • a 1 is C 1-8 -alkyl or -Ci-6-alkyl-O-Ci. 6-alkyl, In a particularly preferred embodiment, A 1 is C 2-3 -alkyl-0-C 1-3 -alkyl, more preferably -CH 2 -CH 2 -CH 2 -O-CH 2 -.
  • Z is an epoxy group selected from or optionally substituted with Ci -8- alkyl.
  • x is an integer of 1-1000, preferably 1-500, more preferably 1-250.
  • the compound (III) is a primary amine, ie RNH 2 , a secondary amine, ie R 2 NH or a monoalcohol, ie R-OH, wherein each R independently represents an organic radical, wherein at least one R in compound (III) a Polyether radical may contain.
  • the polyether radical is understood herein to mean a moiety of the formula (-C n H 2n -O-) m , with n and m as defined herein. !
  • Compound (III) is preferably selected from (purple)
  • a 2 is independently selected from the group of -O-,
  • n is independently an integer of 1 to 20, preferably 2 to 5, more preferably 2 or 3.
  • m is an integer of 0-150, preferably 0-70, more preferably 0-30, and most preferably 1 -30 , In another embodiment, m is 1-70, preferably 1-30, more preferably 5-30.
  • m in formula (IIIa) is 1-70, more preferably 5-70, and most preferably 1-30.
  • R 3 is C 1 -2 2 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkynyl, C 6 . 22 -Alkaryl, such as toluene, Ce-22-aralkyl, such as benzyl or aryl, for example phenyl, naphthyl, anthryl or phenanthryl, optionally substituted with at least one styryl.
  • R 3 is preferably Ci -22 alkyl, C 2- C 22 alkenyl, C 2 -C 2 2-alkynyl, C 6-2 2-alkaryl, such as toluene, or aryl, for example phenyl, naphthyl, anthryl or phenanthryl optionally substituted with at least one styryl. More preferably R 3 is selected from Ci -22 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkynyl, phenyl, toluene, and tristyrylphenyl. Most preferably R 3 is selected from C -22 alkyl, and phenyl.
  • the monoalcohol it is particularly preferred to use alkoxylation products of aliphatic alcohols having 1 to 22 carbon atoms.
  • the alkylene oxide radical is preferably composed of ethylene oxide and / or propylene oxide units.
  • the blocks can be in statistical or block-like distribution. Particularly preferred are aliphatic alcohol ethoxylates having a degree of ethoxylation of 1-30.
  • the compound (IIIb) can be in particular methyl-capped alkoxylated primary monoamines, which are commercially available under the tradename Jeffamine ®, is used.
  • a stoichiometric ratio of epoxide group to compound (III) (primary amine, secondary amine or monoalcohol) of 1: 1 is preferably selected.
  • the reaction can be carried out using basic catalysts, such as sodium hydroxide or potassium methoxide, for the reaction product (I), as described, for example, in US Pat. No. 6,495,727 described.
  • basic catalysts such as sodium hydroxide or potassium methoxide
  • acidic catalysts such as boron trifluoride-diethyl etherate
  • reaction to the reaction product (I) is a nucleophilic attack of the amine and / or the alcohol group of the compound (III) to the epoxide group of the compound (II), which has a ring opening of the epoxide and formation of a hydroxyl group result.
  • the hydroxy group formed in the addition reaction is isocyanate-reactive and can react with the compound (V) in step (iv) to form pendant polyether groups.
  • step (i) preferably only one reaction product (I) is provided, wherein the reaction product contains at least one polyether radical. If mixtures of reaction products (I) are used, preferably at least 40 to 100 mol%, more preferably 60 to 100 mol%, of all the reaction products (I) comprise at least one polyether radical.
  • R 1 is the same or different and represents an optionally substituted hydrocarbon radical having 1-18 carbon atoms per radical.
  • R 1 is independent of one another a hydrocarbon radical having 1-18 carbon atoms per radical.
  • the hydrocarbon radical is independently of one another Ci-i 8 alkyl, aryl, such as phenyl, naphthyl, anthryl or phenanthryl, alkaryl, such as toluene, or aralkyl, such as benzyl.
  • R 1 is selected from the group consisting of Ci -6 alkyl, aryl or aralkyl, more preferably d-6-alkyl, aryl or benzyl, even more preferably Ci_6- alkyl, more preferably methyl or ethyl, and most preferably methyl ,
  • R 2 is independently divalent branched or linear C 2-8 alkyl optionally substituted with carbonyl.
  • R 2 is independently a divalent branched or linear C 2 -8-alkyl, in particular ethyl, n-propyl or n-butyl, preferably n-propyl.
  • a 3 is independently selected from the group consisting of -O-, -NH- and -NR'-, wherein R 'is a monovalent hydrocarbon radical having 1 to 18 carbon atoms, preferably Ci_i 8 alkyl, more preferably methyl or ethyl. Preferably, A 3 is -0- in each case.
  • n is independently an integer from 1 to 20, preferably 2 or 3, more preferably 2.
  • m is an integer of 0-150, preferably 0-70, more preferably 0-30, and most preferably 1-30. In another embodiment, m is 1-70, preferably 1-30.
  • x is an integer from 1 to 1000, preferably from 1 to 500, more preferably from 1 to 250.
  • n 2 and / or 3.
  • reaction with the isocyanate compound (V) can thus take place via the terminal isocyanate-reactive OH group.
  • reaction product (I) and compound (IV) can either be any one of the reaction product (I) and compound (IV)
  • the reaction product (I) and / or the compound (IV) is optionally equilibrated with a cyclic or linear polysiloxane.
  • Equilibration reactions are known to the person skilled in the art.
  • the equilibration reaction cleaves the siloxane units in compounds (I) and (IV), which fragments randomly recombine.
  • the number x of the siloxane repeating units in the compounds (I) and / or (IV), at simultaneous degradation of the added polysiloxane can be increased.
  • x can be increased from 1 up to 1000, preferably up to 500, more preferably up to 250.
  • the equilibration is preferably carried out under basic or acid, preferably basic catalysis, with stirring at temperatures of 100-180 ° C.
  • the catalyst is neutralized after the reaction and optionally separated. Volatile constituents are optionally distilled off.
  • Suitable basic catalysts are alkali metal hydroxides, alkali metal alcoholates, tetramethylammonium hydroxide, tetramethylphosphonium hydroxide.
  • acid catalysts e.g. Sulfuric acid, trifluoromethanesulfonic acid or acidic ion exchange resins can be used.
  • polydi-d-6-alkyl siloxane more preferably polydimethylsiloxane, more preferably oligodimethylsiloxane, even more preferably cyclic oligo- or polydimethylsiloxane is used.
  • polydimethylsiloxane more preferably oligodimethylsiloxane, even more preferably cyclic oligo- or polydimethylsiloxane
  • hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and mixtures thereof are suitable.
  • linear polysiloxanes mentioned above are preferably Ci -8 alkyl, more preferably terminated with hydroxyl groups. Particularly preferred is ⁇ , ⁇ - ⁇ -terminated linear polydimethyldisiloxane.
  • step (iv) the reaction product (I) or the equilibrated reaction product (I) from step (iii) and optionally the compound (IV) or the equilibrated compound (IV) from step (iii) with at least one organic compound (V) having at least 2 isocyanate groups per molecule reacted. , ⁇ 4 -
  • x in the reaction product (I) or in the equilibrated reaction product (I) from step (iii) and optionally in compound (IV) or in the equilibrated reaction product (IV) from step (iii) is 10 bis 1000 and preferably 10 to 500.
  • the compound (V) is preferably selected from hexamethylene-1,6-diisocyanate, isophorone diisocyanate, toluylene-2,4-diisocyanate, toluylene-2,6-diisocyanate, phenylene-1,3-diisocyanate, 4,4'-methylene bis (cyclohexyl isocyanate), 4,4'-methylene-bis (phenyl isocyanate) and dimethyl phenyl diisocyanate, particularly preferred is hexamethylene-1, 6-diisocyanate and isophorone diisocyanate.
  • Step (iv) is carried out under such conditions that the hydroxy group formed in the reaction product (I) by opening the epoxy ring reacts with the isocyanate group-containing compound (V). If the reaction product (I) contains secondary amino groups, the resulting secondary amine is isocyanate-reactive.
  • dipropylene glycol dimethyl ether and propylene glycol methyl ether acetate examples include di-n-butyltin dilaurate, tin (II) octoate, dibutyltin diacetate, potassium octoate, zinc dilaurate, bismuth trilaurate or tertiary amines, such as Dimethylcyclohexylamin, Dimethylaminopropyldipropanolamin, Pentamethyldipropylentriamin, N-methylimidazole or N-ethylmorpholine into consideration.
  • step (iv) may further be present at least one compound (VI) containing at least one isocyanate-reactive group, for example -OH, -NH 2 or -NHR.
  • the compound (VI) is selected from
  • R 4 , A 2 , A 3 , n and m are as defined above,
  • R 5 independently represent optionally substituted divalent, trivalent or tetravalent Ci -8 alkyl, C 1-8 alkyl ODS alkyl or aryl, for example phenyl,
  • R 6 and R 6 ' form a heterocycle with the nitrogen atom, which may optionally contain further heteroatoms, such as O, S and N, preferably O, and is optionally substituted by Ci-s-alkyl.
  • R 6 and R 6 ' form with the nitrogen atom preferably a piperazine, piperidine, pyrrolidine or morpholino radical, which is optionally substituted by C 1 -8 -alkyl.
  • R 5 , R 6 , R 6 ' are - unless unsubstituted - independently of one another preferably substituted with hydroxyl groups.
  • Dodecyldiethanolamine and N-stearyldipropanolamine N, N-dimethylethanolamine, ⁇ , ⁇ -diethylpropanolamine, N, N-dimethylaminoproylmethylethanolamine, dimethyl 2- (2) aminoethoxy) ethanol, 1,5-bis (dimethylamino) -pentan-3 ol, 1, 5-bis (methylamino) -pentan-3-ol, 1, 7-bis (dimethylamino) -heptan-4-ol, N, N-bis (3-dimethylaminopropyl) -N-isopropanolamine, 2,4,6-tris (dimethylaminomethyl) phenol, 1, 1, 1 -
  • Dimethylaminopropylmethylamine N, N-bis (dimethylaminopropyl) amine, dimethylaminopropylamine, N, N, N'-trimethyl-N'-hydroxyethyl-bisaminoethyl ether, N- (3-dimethylaminopropyl) -N, N-diisopropanolamine, N- (3-dimethylaminopropyl) Dimethylaminopropyl) -N, N-diisopropanolamine, 2- (2-dimethylaminoethoxy) ethanol, ⁇ , ⁇ , ⁇ '-trimethylaminoethyl-ethanolamine, pyrrolidine, piperidine, N-methylpiperazine, and morpholine. Particular preference is given to the compounds (VI) selected from N-methyldiethanolamine, ⁇ , ⁇ -dimethylethanolamine, N, N-
  • the molar ratio of isocyanate to isocyanate-reactive groups is preferably between 0.4 and 1, preferably between 0.6 and 1.
  • Isocyanate-reactive groups are any groups capable of reacting with isocyanate groups -NGO, especially -OH, -NH 2 and -NHR. In calculating the molar ratio, all isocyanate-reactive groups derived from the reaction product (I), the compound (IV), the equilibrated compound (I), the equilibrated compound (IV) and / or the compound (VI), to take into account.
  • aqueous emulsion comprising a polysiloxane according to the invention.
  • the aqueous emulsion contains from 1 to 80% by weight, preferably from 1 to 60% by weight and more preferably from 1 to 50% by weight of the polysiloxane of the present invention, based on the total composition.
  • the components of the aqueous emulsion according to the invention, comprising water and the polysiloxane according to the invention, can be known by the person skilled in the art Mixing process at temperatures of preferably 10-80 ° C can be obtained.
  • aqueous emulsions according to the invention can be emulsified using moderate to high shear forces, for example by means of a stirrer, Ultraturax or homogenizer.
  • the addition of an acid for example acetic acid or lactic acid, possibly promotes the process of emulsification considerably.
  • the polysiloxanes according to the invention are self-emulsifying, ie no additional surfactants are necessary to provide macro- or microemulsions.
  • Suitable acids include acetic acid or lactic acid may be used.
  • the proportion of acid is preferably from 0.1 to 4 wt .-%, more preferably from 0.2 to 2 wt .-% based on the total composition.
  • Suitable surfactants are anionic, cationic, non-ionic or amphoteric emulsifiers or mixtures thereof.
  • alkoxylation products of aliphatic alcohols having 6-22 carbon atoms are used, comprising up to 50 moles of alkylene oxide units, especially ethylene oxide and / or propylene oxide units.
  • the alcohols may preferably contain 1 to 16 carbon atoms; they may be saturated, linear or preferably branched and may be used alone or in mixtures.
  • Another object of the invention is the use of the polysiloxanes of the invention or the aqueous emulsion of the invention for finishing textile fabrics or textile fibers.
  • Textile fabrics or textile fibers which can be finished with the polysiloxanes or aqueous emulsions according to the invention are woven, knitted fabrics and yarns of native fibers, such as cotton or wool, but also of synthetic fibers, such as viscose, polyester, polyamide, polyolefins or polyacrylonitrile.
  • the polysiloxanes or aqueous emulsions according to the present invention are preferably in the form of aqueous baths and Application fleets, optionally applied together with other preparation agents on the textile fabrics or textile fibers.
  • the polysiloxanes or aqueous emulsions according to the present invention are preferably applied by forced application, for example by impregnation of the substrate, subsequent squeezing on the padder and a final drying passage. Also preferred are conventional exhaust processes, spray application and application by means of printing or flatschvon.
  • the textile fabrics or textile fibers about 0, 1 -5 wt .-%, more preferably 0.1 -2 wt .-% of the polysiloxanes according to the invention based on the weight of the substrate.
  • a further aspect of the invention is therefore also a process for finishing fabrics or fibers, comprising applying the polysiloxane or aqueous emulsion according to the invention to the textile fabric or the fiber.
  • a further aspect of the invention is a textile fabric or fibers comprising at least one polysiloxane according to the invention.
  • the polysiloxane is used in amounts of 0.1 to 5 wt .-%, more preferably from 0, 1 to 5 wt .-% based on the total composition.
  • the surface roughness can be reduced and the gloss can be increased.
  • the preparation was prepared as described in WO 2004/044306, Table 2, Blend 12c.
  • the dry matter was adjusted to 25% by weight with water.
  • the preparation of the polyether-functional organopolysiloxane is carried out by reacting 539.2 g (0.1 mol), ö> -Diepoxypolydimethylsiloxan having the formula
  • organopolysiloxane obtained 30 g (0.009 mol OH) are mixed with 84 g (0.025 mol OH) of the organopolysiloxane precursor obtained in Comparative Example 4.
  • 2.4 g (0.040 mol OH) of N-methyldiethanolamine and 1.2 g (0.013 mol OH) of N, N-dimethylethanolamine are added to the mixture and the mixture is heated to 45.degree.
  • the emulsification is carried out analogously to Comparative Example 4. This gives an off-white, transparent emulsion having an average particle size of 140 nm.
  • Sections of a bleached, non-optically brightened cotton modal knit fabric were impregnated with an aqueous liquor containing 20 g / l of the respective preparations according to Example 1-10 and 0.5 g / l acetic acid 60% on a laboratory pad with a wet pickup of 80% , Dried at 120 ° C for 2 min and then heat-set at 170 ° C for 2 min. Subsequently, the whiteness of the samples was measured whole on the whiteness meter "datacolor 600" from the company "datacolor international" (Switzerland).
  • Example 6 200 Example 7 202
  • the preparations according to the invention do not lead to any yellowing of the textile substrate.
  • the whiteness of the substrates equipped with the preparations according to the invention corresponds to that of the untreated textile.
  • the testing of the finished surface textile for color fastness is carried out in accordance with EN ISO 105-P01.
  • a sample is taken from the dimensions of the heater and placed between the two single-fiber accompanying fabric with the same dimensions and sewn on a narrow side to the specimen.
  • the sample is placed in the heater and treated for 30 seconds at 150, 180 or 210 ° C.
  • the surface pressure on the test specimen is 4 kPa.
  • the specimen is designed for 4 h in normal climate as described in ISO 139 at 65% relative humidity and a temperature of 20 ° C.
  • the change of the color is evaluated with the gray scale (ISO 105 A02).
  • the assessment of the accompanying tissues is made by comparison between the inflamed accompanying tissues and the blind-treated accompanying tissues with the gray scale (ISO 105 A03) for evaluating the staining. The best results receive the grade 5, the worst results the grade 1.
  • n is independently an integer from 1 to 20, preferably 2 or 3, and
  • polysiloxane for equilibration in step (iii) is polydi-C 1-6 -alkyl-siloxane, preferably polydimethylsiloxane, more preferably oligodimethylsiloxane, even more preferably cyclic oligo- or polydimethylsiloxane.
  • R 5 is, independently of one another, optionally substituted divalent, trivalent or tetravalent C 1-S- alkyl, C 1 -8 -alkyl-O-C 1 -8- alkyl or aryl,

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Silicon Polymers (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Cosmetics (AREA)

Abstract

L'invention concerne des organopolysiloxanes-polyuréthanes et leurs utilisations, notamment pour l'apprêt de surfaces textiles et de fibres textiles.
EP16727150.1A 2015-05-26 2016-05-24 Organopolysiloxanes-polyuréthanes Active EP3303453B1 (fr)

Applications Claiming Priority (2)

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DE102015209627.0A DE102015209627A1 (de) 2015-05-26 2015-05-26 Polyurethan-Organopolysiloxane
PCT/EP2016/061684 WO2016188994A1 (fr) 2015-05-26 2016-05-24 Organopolysiloxanes-polyuréthanes

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EP3303453A1 true EP3303453A1 (fr) 2018-04-11
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CN (1) CN107820527B (fr)
BR (1) BR112017025132A2 (fr)
DE (1) DE102015209627A1 (fr)
TW (1) TWI665237B (fr)
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ZA (1) ZA201707770B (fr)

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CN111875772A (zh) * 2020-06-03 2020-11-03 浙江工业大学 一种聚氨酯改性有机硅油的合成方法
CN115926174B (zh) * 2023-01-03 2023-12-05 宁波润禾高新材料科技股份有限公司 一种抗酚黄变亲水聚硅氧烷材料、制备方法及其应用

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Publication number Publication date
KR20180011793A (ko) 2018-02-02
US10626223B2 (en) 2020-04-21
TW201714923A (zh) 2017-05-01
TWI665237B (zh) 2019-07-11
KR102258072B1 (ko) 2021-05-28
WO2016188994A1 (fr) 2016-12-01
BR112017025132A2 (pt) 2018-07-31
JP2018524419A (ja) 2018-08-30
DE102015209627A1 (de) 2016-12-01
US20180155503A1 (en) 2018-06-07
JP6978323B2 (ja) 2021-12-08
EP3303453B1 (fr) 2022-06-08
CN107820527B (zh) 2021-05-28
ZA201707770B (en) 2018-11-28
CN107820527A (zh) 2018-03-20

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